Wireless Telephone Device and Computer Readable Medium Storing Program for Controlling the Same

1. A wireless telephone device comprising: means for identifying a telephone number of a received call; a timer for measuring a time period from a time instant of receiving the call; a memory for storing a predetermined message and a predetermined time period both of which correspond to a predetermined telephone number; and a display device; wherein the wireless telephone device displays the predetermined message on the display device when the wireless telephone device receives a call from the predetermined telephone number and then the call is cut off within the predetermined time period.

2. The wireless telephone device claimed in claim 1 , further comprising means for prohibiting answering to a call received from the predetermined telephone number until the predetermined time period has passed.

3. The wireless telephone device claimed in claim 1 , wherein: said memory further stores an additional message and an additional time period both of which correspond to the predetermined telephone number; the device further comprises a selector for selecting one of said messages according to the measured time period.

4. The wireless telephone device claimed in claim 3 , wherein said memory further stores an additional telephone number different for the predetermined telephone number and at least one message and time period both of which correspond to said additional telephone number.

5. The wireless telephone device claimed in claim 3 , further comprising means for prohibiting answering to a call received from the predetermined telephone number until the predetermined time period has passed.

6. The wireless telephone device claimed in claim 3 , wherein said messages and said time periods are set through an external device connected with the wireless telephone device.

7. The wireless telephone device claimed in claim 1 , wherein said display device is a color LCD (liquid crystal display).

8. A computer readable medium storing a computer program for controlling a wireless telephone device, said computer program operable to cause the wireless telephone device to: store a predetermined message, a predetermined time period and a predetermined telephone number in a memory; identify a call from the predetermined telephone number; measure a time period from receiving the call to cutting off the call; and display the predetermined message on a display device of the wireless telephone device when the measured time period agrees with the predetermined time period.

9. The computer readable medium claimed in claim 8 , wherein said computer program further comprises prohibiting answering to a call received from the predetermined telephone number until the predetermined time period has passed.

10. The computer readable medium claimed in claim 8 , wherein: said storing step stores an additional messages and an additional time period both of which correspond to the predetermined telephone number; said computer program further comprises a selecting step for selecting one of said messages for displaying at said displaying step according to the measured time period.

11. The computer readable medium claimed in claim 10 , wherein: said storing step further stores an additional telephone number different from the predetermined telephone number and at least one message and time period both of which correspond to said additional telephone number; and said selecting step selects one of the messages stored in said memory according to the measured time period and the identified telephone number.

12. The computer readable medium claimed in claim 10 , wherein said computer program further comprises prohibiting answering to a call received from the predetermined telephone number until the predetermined time period has passed.

13. The computer readable medium claimed in claim 10 , wherein the predetermined messages and the predetermined time periods are set through an external device connected with the wireless telephone device at said storing step.